#281C80#281C80

#281C80 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.1% C 0.157 H 278.2°. Best body text is #FFFFFF at 13.39:1 contrast (WCAG AA passes).

Color values

HEX	#281C80
RGB	rgb(40, 28, 128)
HSL	hsl(247, 64%, 31%)
HSV	hsv(247, 78%, 50%)
CMYK	cmyk(68.8%, 78.1%, 0%, 49.8%)
CIE-LAB	lab(19.39, 37.09, -53.97)
CIE-LCH	lch(19.39, 65.49, 304.50°)
OKLab	oklab(32.13% 0.0224 -0.1559)
OKLCH	oklch(32.13% 0.157 278.2)
XYZ	xyz(5.1854, 2.8397, 20.6927)
Luminance	0.0284 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C80 #74801C

analogous

#1C4280 #281C80 #5A1C80

triadic

#281C80 #80281C #1C8028

tetradic

#281C80 #801C42 #74801C #1C805A

square

#281C80 #801C42 #74801C #1C805A

split-complementary

#281C80 #805A1C #42801C

monochromatic

#09061C #18114E #281C80 #3827B2 #5341D5

Accessibility & contrast

On white

13.39

#281C80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#281C80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C80

13.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C80	#FFFFFF	#000000	##FFFFFF
##281C80	1.00	13.39	1.57	13.39
#FFFFFF	13.39	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003383

Deuteranopia (green-blind)

#002B7E

Tritanopia (blue-blind)

#00394D

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #281c80;
/* rgb */ color: rgb(40, 28, 128);
/* oklch */ color: oklch(32.1% 0.157 278.2);

Tailwind

colors: {
  custom: {
    50: '#705aa6',
    500: '#281c80',
    950: '#000000',
  },
}

SCSS

$custom: #281c80;
$custom-light: #705aa6;
$custom-dark: #000000;

JSON

{
  "hex": "#281c80",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 128
  },
  "hsl": {
    "h": 247.2,
    "s": 64.103,
    "l": 30.588
  },
  "oklch": {
    "l": 0.32132,
    "c": 0.15749,
    "h": 278.2
  },
  "luminance": 0.0284
}

Semantic roles & 50–950 ramp

primary

#281C80

secondary

#A6B344

accent

#E741D3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #281C80

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →